Update app.py

app.py

@@ -76,7 +76,7 @@ def network_narrator(narrator_id, fst_year, lst_year, yaxis):
 
     edge_narrator = edge_info[(edge_info['Teacher_ID'] == narrator_id) | (edge_info['Student_ID'] == narrator_id)]
     narrator_taraf = taraf_info[taraf_info['ID'].isin(edge_narrator['Edge_ID'].to_numpy())]
-    narrator_taraf = narrator_taraf[(narrator_taraf['Year'] >= fstyear)& (narrator_taraf['Year'] <= lstyear)]
+    narrator_taraf = narrator_taraf[(narrator_taraf['Year'] >= fst_year)& (narrator_taraf['Year'] <= lst_year)]
     merge_edge = narrator_taraf.merge(edges[['Edge_ID', 'Edge_Name']], left_on = 'ID', right_on = 'Edge_ID')
     merge_edge_group = merge_edge.groupby('Edge_Name').sum().reset_index()[['Taraf', 'Hadith', 'Isnad', 'Edge_Name']]
     merge_group_formatted = splitIsnad(merge_edge_group)